189648263 has 8 divisors (see below), whose sum is σ = 216947232. Its totient is φ = 162400896.

The previous prime is 189648241. The next prime is 189648281. The reversal of 189648263 is 362846981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 189648263 - 2¹⁴ = 189631879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189648223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4670 + ... + 20027.

It is an arithmetic number, because the mean of its divisors is an integer number (27118404).

Almost surely, 2^189648263 is an apocalyptic number.

189648263 is a deficient number, since it is larger than the sum of its proper divisors (27298969).

189648263 is a wasteful number, since it uses less digits than its factorization.

189648263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25801.

The product of its digits is 497664, while the sum is 47.

The square root of 189648263 is about 13771.2839996857. The cubic root of 189648263 is about 574.5347344034.

The spelling of 189648263 in words is "one hundred eighty-nine million, six hundred forty-eight thousand, two hundred sixty-three".